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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1843 | 2 |
| 1847 | 1 |
| 1849 | 1 |
| 1850 | 2 |
| 1858 | 1 |
| 1859 | 1 |
| 1867 | 1 |
| 1868 | 1 |
| 1872 | 1 |
| 1880 | 1 |
| 1887 | 2 |
| 1891 | 1 |
| 1896 | 2 |
| 1899 | 1 |
| 1900 | 1 |
| 1902 | 1 |
| 1905 | 1 |
| 1907 | 1 |
| 1913 | 1 |
| 1914 | 1 |
| 1916 | 1 |
| 1917 | 5 |
| 1918 | 1 |
| 1919 | 5 |
| 1920 | 5 |
| 1921 | 2 |
| 1922 | 8 |
| 1923 | 1 |
| 1924 | 5 |
| 1925 | 3 |
| 1926 | 8 |
| 1927 | 3 |
| 1928 | 1 |
| 1929 | 5 |
| 1930 | 1 |
| 1931 | 6 |
| 1932 | 3 |
| 1933 | 2 |
| 1934 | 1 |
| 1935 | 6 |
| 1936 | 3 |
| 1937 | 4 |
| 1938 | 1 |
| 1939 | 4 |
| 1940 | 6 |
| 1941 | 8 |
| 1942 | 3 |
| 1943 | 4 |
| 1944 | 9 |
| 1945 | 6 |
| 1946 | 19 |
| 1947 | 15 |
| 1948 | 17 |
| 1949 | 18 |
| 1950 | 21 |
| 1951 | 26 |
| 1952 | 36 |
| 1953 | 57 |
| 1954 | 31 |
| 1955 | 50 |
| 1956 | 53 |
| 1957 | 74 |
| 1958 | 74 |
| 1959 | 67 |
| 1960 | 62 |
| 1961 | 74 |
| 1962 | 93 |
| 1963 | 199 |
| 1964 | 242 |
| 1965 | 199 |
| 1966 | 262 |
| 1967 | 273 |
| 1968 | 282 |
| 1969 | 334 |
| 1970 | 291 |
| 1971 | 393 |
| 1972 | 460 |
| 1973 | 434 |
| 1974 | 446 |
| 1975 | 1266 |
| 1976 | 1277 |
| 1977 | 1236 |
| 1978 | 1397 |
| 1979 | 1413 |
| 1980 | 4797 |
| 1981 | 8483 |
| 1982 | 8703 |
| 1983 | 9167 |
| 1984 | 9812 |
| 1985 | 9980 |
| 1986 | 10230 |
| 1987 | 11266 |
| 1988 | 12478 |
| 1989 | 13323 |
| 1990 | 13926 |
| 1991 | 15290 |
| 1992 | 15864 |
| 1993 | 16186 |
| 1994 | 16961 |
| 1995 | 17119 |
| 1996 | 18128 |
| 1997 | 18266 |
| 1998 | 19507 |
| 1999 | 22589 |
| 2000 | 28197 |
| 2001 | 30428 |
| 2002 | 32766 |
| 2003 | 35665 |
| 2004 | 39255 |
| 2005 | 43340 |
| 2006 | 46545 |
| 2007 | 51163 |
| 2008 | 55613 |
| 2009 | 58911 |
| 2010 | 63408 |
| 2011 | 67205 |
| 2012 | 71577 |
| 2013 | 73951 |
| 2014 | 82339 |
| 2015 | 90546 |
| 2016 | 94846 |
| 2017 | 94486 |
| 2018 | 99899 |
| 2019 | 103974 |
| 2020 | 115026 |
| 2021 | 121466 |
| 2022 | 113855 |
| 2023 | 110053 |
| 2024 | 109716 |
| 2025 | 110929 |
| 2026 | 13008 |
| 2027 | 1 |